Composite film for unbounded glass
A composite film and glass technology, applied in the field of composite film, can solve problems such as affecting the appearance of products
Inactive Publication Date: 2014-04-09
JIANGSU OBON PLASTIC
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Problems solved by technology
However, due to the emergence of unbounded glass, the composite film that could have been used on these bounded glasses cannot be used on unbounded glass. For example, PVC / PET composite film, PVC adheres to the glass, because the shrinkage rate of PVC is greater than that of PET, therefore, the composite film will shrink during use, so that the composite film that originally covered the glass as a whole shrinks, and the boundary of the composite film is smaller than the glass boundary. The previous bounded glass can be blocked by the frame, but in the unbounded The phenomenon of glass is exposed and seriously affects the appearance of the product
Method used
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[0012] The present invention will be described in further detail below through specific examples.
[0013] like figure 1 As shown, a composite film for unbounded glass includes a first PET film layer 3, a PVC film layer 1, a low-shrinkage film layer with a lower shrinkage rate than the PVC film layer 1, and the first PET film layer 3 passes through the bonding layer. A 2 is adhered to one surface of the PVC film layer 1, and the low-shrinkage film layer is adhered to the other surface of the PVC film layer 1 through the adhesive layer 2 4 .
[0014] That is to say, the PVC film layer 1 is between the first PET film layer 3 and the low-shrinkage film layer. The rate is low, and in the process of use, the overall shrinkage of the composite film can be reduced.
[0015] Therefore, the low-shrinkage film layer is preferably the second PET film layer 5 with the same composition as the first PET film layer 3 . In this way, there are PET film layers with low shrinkage rate on both...
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Abstract
The invention discloses a composite film for a piece of unbounded glass. The composite film comprises a first PET (polyethylene glycol terephthalate) film layer, a PVC (polyvinyl chloride) film layer and a low shrinkage film layer, wherein the shrinking percentage of the low shrinkage film layer is lower than that of the PVC film layer; the first PET film layer is bonded on one surface of the PVC film layer through a bonding layer I; and the low shrinkage film layer is bonded on the other surface of the PVC film layer through a bonding layer II. The composite film can be used for the unbounded glass and and can reduce the shrinkage of the composite film to a maximum limit, so that the appearance of the unbounded glass is beautiful.
Description
technical field [0001] The invention relates to a composite film, in particular to a composite film for borderless glass. Background technique [0002] At present, there is a new type of unbounded glass in the industry for the types of glass. This unbounded glass is opposite to the definition of bounded glass. A frameless monolithic glass. For example, in the past, the panels of refrigerators and air conditioners had a frame in addition to a piece of glass. This is the application of bounded glass, but now unbounded glass is popular. It uses a whole piece of glass without a frame as a panel of electrical appliances, and its appearance is beautiful and generous. , more and more favored by consumers. However, due to the emergence of unbounded glass, the composite film that could have been used on these bounded glasses cannot be used on unbounded glass. For example, PVC / PET composite film, PVC adheres to the glass, because the shrinkage rate of PVC is greater than that of PE...
Claims
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IPC IPC(8): B32B27/08B32B27/30B32B27/32B32B33/00
Inventor 张立平张惠娟
Owner JIANGSU OBON PLASTIC